Vise



`I. o. HOLEN.

VISE.

APPLICATION FILED APR. 5.1919.

1 ,$26,983. Patented Jan. l6, 1920. f

Mr l

INVENToR. .j 0 HOLE/v.

JoiiN o. HOLEN, or TONO, WASHINGTON.

VISE.

Specication of Letters Patent,

Patented Jan. 6, 1920.

Application filed April 5, 1919. Serial No. 287,701.

To all LU/wm it may concern:

Be it known that I, JOHN O. HOLEN, a. citizen of the United States, residing at Tono, in the county of Thurston and State of l/Vashington, have invented certain new and useful Improvements in Vises, of which the followingis a specification.

This invention relates to improvements in vises and more particularly to bench vises of the type shown and described in my United States Letters-Patent No. 1262795 of April 1c, 191s.

It is the Object of the present invention to obviate the objectionable outward movement of the clamping screw by which the jaws of the vise are closed together and at the same time cause it to exert a positive pull upon the movable jaw when the vise is being opened, by mounting the clamping screw so as to be immovable in the direction of its length.

Vith this object in view, my invention consists of the construction and arrangement of parts shown in the accompanying drawings in which like characters of reference designate corresponding parts throughout the several views and in which- Figure 1 is a partially sectional plan of the improved vise;

Fig'. 2, is a partially sectional side elevation of the same, and

Fig. 3, a section taken on the line 3 8, Figa 2.Y

The reference numeral 2 designates the fixed jaw of the vise which has an anvil extension 3 for its support upon benches or other structures to which it is fastened, and 7 the movable jaw which has an integral forwardly projecting nose 8 for its connection with the clampingscrew.

The nose which exteriorly is of rectangular section has a correspondingly formed, longitudinally extending channel and at opposite sides thereof, axially alined openings for the pivotal support of trunnions 9 on a nut 10 which cooperates with a feed screw 12 to close the jaws together.

A standard 4 spaced in front of the stationary aw is integrally connected therewith by a bracket 5 projecting at the lower end of its downwardly extending tail.

The bracket has a slot 6 to receive the tail of the moving jaw 7 of the vise, and the standard has at its top, facing the movable jaw, a recess in which the nose of the movable jaw is slidably fitted.

The feedscrew 12 which works in the pivoted nut 10 on the movable jaw, is rotatably supported in lan opening in the front wall of the recess in the standard, and it is held against longitudinal movement by an integral collar 13 which engages the inside of the wall, and a head 14 which bears against the outside of the same.

The head is secured to the screw by a cotterpin 15 and it carries the usual rod 16 which gives it the leverage required for its rotation.

The recess of the standard is closed at the top thereof by a cap 17 secured bv screws 18. The movable jaw of the vise is pivotally supported in the slot of the bracket 5 through which its tail extends and in order to preserve the parallelism of the jaws when closed together this pivotal connection is made adjustable as in the construction shown and described in the above mentioned patent. i

The movable jaw has to this end a socket in which a spherical nut 19 is movably fitted. A screw 20 'working in this nut is supported in an opening of the forward side of the bracket and a recess in the opposite side of the same, and it is held against longitudinal movement by a screw pin 21 which extends in a. circumferential groove of its shank.

A spring 22 fastened at its ends between the tails ofthe jaws at their lower extremities, assists the feed-screw in separating the movable jaw from the fixed jaw when the vise is being opened.

It will be seen that the vise has no connections above the bracket at the lower end of its fixed element to interfere with the placement of objects of more than ordinary proportions between its jaws, and that the mechanism for adjusting the movable jaw relative to the fixed jaw is positive in its action during its closing movement as well as during its opening movement, and has no outwardly moving parts.

Having thus described my invention what I claim and desire to secure by Letters-Patent is:

1. A vise comprising a stationary jaw, a relatively fixed bearing in front thereof, a movable jaw between the fixed jaw and the bearing, having a downwardly extending tail pivotally supported at its lower end, a nut pivoted at the upper end of the tail, a feed-screw rotatably supported at one end in the bearing and having its free end working in the nut, and means for holding the screw against longitudinal movement.

2. A vise comprising a stationary jaw, a relatively fixed standard in front thereof, said standard having a recess7 and a bearing at an end of the recess remote from the jaw, a pivoted jaw between the standard and the stationary jaw, having a nose sliding in the recess, a pivoted nut on said nose, a eed 10 ln testimony whereof I 'have aiiCiXed my 15 signature.

JOHN O. HOLEN. 

